CN105727605A - Improved intermittent dynamic quicksand filtering device and system - Google Patents
Improved intermittent dynamic quicksand filtering device and system Download PDFInfo
- Publication number
- CN105727605A CN105727605A CN201610257685.7A CN201610257685A CN105727605A CN 105727605 A CN105727605 A CN 105727605A CN 201610257685 A CN201610257685 A CN 201610257685A CN 105727605 A CN105727605 A CN 105727605A
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- China
- Prior art keywords
- cartridge filter
- sand
- water
- backwash pipeline
- filter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/16—Upward filtration
- B01D24/167—Upward filtration the container having distribution or collection headers or pervious conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/38—Feed or discharge devices
- B01D24/40—Feed or discharge devices for feeding
- B01D24/402—Feed or discharge devices for feeding containing fixed liquid displacement elements or cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
- B01D24/4689—Displacement of the filtering material to a compartment of the filtering device for regeneration
Abstract
The invention relates to an improved intermittent dynamic quicksand filtering device and system. The device comprises a filtering cylinder. The filtering cylinder is filled with filter sand and forms a sand bed. A water distribution device is embedded inside the sand bed. The upper end of the water distribution device is communicated with an external raw water bin. The middle of the upper end of the filtering cylinder is sunken to form a separation cavity. A backflushing pipeline is further arranged inside the filtering cylinder. The lower end of the backflushing pipeline is embedded inside the sand bed and located at the bottom of the filtering cylinder. A sand washing device is arranged at the upper end of the backflushing pipeline. An upper end opening of the backflushing pipeline is communicated with the separation cavity. The separation cavity is communicated with an external sewage pond. A water overflowing cavity with an upper open end is arranged inside the filtering cylinder. The water overflowing cavity drains water overflowing from the filtering cylinder through a pipeline. According to the improved intermittent dynamic quicksand filtering device and system, backflushing is performed on the sand bed while filtering is performed, continuous filtering is performed on raw water, the filtering effect is enhanced, and the defect that a sand bed is cleaned after a machine halts in the prior art is overcome; backflushing is performed while equipment runs, blockage is effectively avoided, and repair and maintenance are convenient.
Description
Technical field
The present invention relates to environmental protection technical field, particularly relate to a kind of modified form uninterruptedly dynamic drift sand defecator and system.
Background technology
Along with people are more and more stronger to the consciousness of environmental conservation; using water wisely has had become as national consensus; particularly in some water for industrial uses and life aspect, filtration system is generally adopted to be filtered used water processing and reusing, so can effectively save water resource.
Existing dynamic quicksand filtering system there is problems in that
1, husky device internal structure is washed too small, if sand easily causes wash husky device blocking containing stone, plastic pocket；A large amount of sandstones are deposited in surface and flow out sand filter eventually through rinsing the mouth of a river, and sandstone quantity affects filter effect after reducing；
2, internal structure adopts welding manner, is unfavorable for maintenance after blocking；
3, there are two outlets of two outlets (flushing water outlet and filtrate outlet) have to there is liquid level difference guarantee properly functioning in equipment；
4, the uncontrollable flushing water rate of discharge of original equipment and pressure, due to rinse the mouth of a river than filter liquor mouth lower in actual motion a large amount of water by flushing water outlet outflow, cause filter liquor mouth cannot water outlet, equipment cannot sewage that outwards emission treatment is up to standard.
Summary of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, it is provided that a kind of modified form is dynamic drift sand defecator and system uninterruptedly.
The technical scheme is that
According to one aspect of the present invention, provide a kind of modified form uninterruptedly dynamic drift sand defecator, including cartridge filter, be filled with filter sand in described cartridge filter and form casting bed, being embedded with water-distributing device in described casting bed, the upper end of described water-distributing device connects with the former sump in outside；Described cartridge filter upper center is caved in formation disengagement chamber, backwash pipeline it is additionally provided with in described cartridge filter, the lower end of described backwash pipeline is embedded in described casting bed, and it is positioned at bottom described cartridge filter, the upper end of described backwash pipeline is provided with sand-washing device, and the upper port of described backwash pipeline connects with described disengagement chamber, described disengagement chamber also connect with outside cesspool, and the sewage after washed-out sand is expelled to outside cesspool；Being provided with the water overflow chamber of upper end open in described cartridge filter, the upper port of described water overflow chamber is lower than the upper surface of described cartridge filter, and described water overflow chamber will be arranged outside the water overflowed in described cartridge filter by pipeline；The bottom of described cartridge filter is provided with the air inlet for passing into compression gas, and described air inlet is positioned at the lower section of described backwash pipeline lower port.
On the basis of technique scheme, the present invention can also do following improvement:
Further: the upper end of described water-distributing device is connected to water inlet pipe, described water inlet pipe stretches out described cartridge filter away from one end of described water-distributing device by being arranged on the water inlet of described cartridge filter upper end sidewall and connects with the former sump in outside.
Above-mentioned further scheme provides the benefit that: can be passed into described water-distributing device by outside former water to be filtered by described water inlet pipe, and isolate with the filtrate after described cartridge filter inner filtration, improve the filter efficiency of equipment.
Further: described disengagement chamber is also communicated with guide pipe, described guide pipe stretches out described cartridge filter away from described disengagement chamber one end by the sewage mouth being arranged on described cartridge filter upper end sidewall and connects with outside cesspool, and the sewage after washed-out sand is expelled to outside cesspool.
Above-mentioned further scheme provides the benefit that: by described guide pipe can by the sewage after described washed-out sand in described disengagement chamber and between sewage mouth the effect underflow stream of liquid level difference go out, timely effluent sewerage, improve equipment cycle efficieny.
Further: the lower end of described cartridge filter is inverted taper, described backwash pipeline is arranged along the axis direction of described cartridge filter, and gap is left at the vertebra shape tip of the lower port of described backwash pipeline and described cartridge filter lower end.
Above-mentioned further scheme provides the benefit that: can so that dirty sand after filtering receives the effect of self gravitation and automatically sinks down into the bottom of described cartridge filter by said structure, and make dirty sand send the lower end of described backwash pipeline to enter smoothly by external compression gas, achieve the wash cycles of filter sand, improve the operational efficiency of equipment.
Further: the vertebra shape that described air inlet is positioned at described cartridge filter lower end is most advanced and sophisticated, external compression gas passes into the filter sand to described cartridge filter from described air inlet, will be located in the dirty sand bottom described cartridge filter to be pressed into from described backwash pipeline lower port, and dirt sand is processed via described sand-washing device from rising to upper port from the bottom to top in described backwash pipeline.
Above-mentioned further scheme provides the benefit that: by passing into external compression gas from described air inlet, the dirty sand being deposited on bottom described cartridge filter can be promoted to described backwash pipeline upper end and process, achieve the wash cycles of filter sand, improve the operational efficiency of equipment.
Further: described water-distributing device is sleeved on the outer wall of described backwash pipeline along the axis direction of described cartridge filter.
Above-mentioned further scheme provides the benefit that: so that the former water entered from described water inlet pipe is evenly distributed in described casting bed by described water-distributing device, can enter substitute and improve filter effect by the way.
Further: to be additionally provided with in described cartridge filter and hold mud umbrella, described in hold mud umbrella and be embedded in described casting bed, and described in hold mud umbrella cover and be contained on the outer wall of described backwash pipeline, described in hold mud umbrella and be positioned at below described water-distributing device and support described water-distributing device.
Above-mentioned further scheme provides the benefit that: can be used to support described water-distributing device by the described mud umbrella that holds, and makes the filter sand fallen after rise from described sand-washing device be distributed the bottom of described cartridge filter uniformly, it is ensured that the mobility of filter sand in described cartridge filter.
Further: described water overflow chamber is arranged on inside described cartridge filter upper end, one sidewall of described water overflow chamber overlaps with the sidewall of described cartridge filter setting, and the sidewall that described water overflow chamber overlaps with described cartridge filter is provided with water purification mouth, the former water after filter sand filters is discharged from described water purification mouth by pipeline.
Above-mentioned further scheme provides the benefit that: so that the former water after filtering overflows automatically in described cartridge filter, and can being arranged from described water purification mouth by said structure, simple in construction, in whole cartridge filter, the mobility of water and filter sand is better.
Further: described backwash pipeline is arranged over cover plate, it is prevented that the air pressure in described backwash pipeline crosses the filter sand in water overflow chamber described in senior general and sewage ejection.
Above-mentioned further scheme provides the benefit that: by being provided above cover plate at described water overflow chamber, the air pressure being possible to prevent in described backwash pipeline crosses the filter sand in backwash pipeline described in senior general and sewage ejection, it is to avoid after equipment runs a period of time, filter sand quantity reduces the filter effect that impact is follow-up.
According to another aspect of the present invention, provide a kind of modified form uninterruptedly dynamic drift sand filtration system, including air compressor machine, operated pneumatic valve and described defecator, described air compressor machine passes into compression gas by air-pressure duct bottom described cartridge filter, and described operated pneumatic valve is arranged on described air-pressure duct and regulates the air pressure in described backwash pipeline.
The invention has the beneficial effects as follows: a kind of modified form of the present invention is dynamic drift sand defecator and system uninterruptedly; while filtering, casting bed is carried out backwash; achieve and former water is carried out continuous filtration treatment; so can be greatly improved filter effect, and overcome the defect of necessary stop cleaning casting bed in prior art.It addition, wash while equipment runs, it is also possible to effectively avoid blocking, the convenient care and maintenance to equipment.
Accompanying drawing explanation
Fig. 1 is a kind of modified form uninterruptedly dynamic drift sand filter apparatus configuration schematic diagram of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, cartridge filter, 2, casting bed, 3, water-distributing device, 4, disengagement chamber, 5, backwash pipeline, 6, sand-washing device, 7, water overflow chamber, 8, water inlet pipe, 9, conduit, 10, air inlet, 11, hold mud umbrella, 12, cover plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, principles of the invention and feature being described, example is served only for explaining the present invention, is not intended to limit the scope of the present invention.
As shown in Figure 1, a kind of modified form is dynamic drift sand filter apparatus configuration schematic diagram uninterruptedly, including cartridge filter 1, is filled with filter sand and forms casting bed 2 in described cartridge filter 1, being embedded with water-distributing device 3 in described casting bed 2, the upper end of described water-distributing device 3 connects with the former sump in outside.
Described cartridge filter 1 upper center is caved in and is formed disengagement chamber 4, it is additionally provided with backwash pipeline 5 in described cartridge filter 1, the lower end of described backwash pipeline 5 is embedded in described casting bed 2, and it is positioned at bottom described cartridge filter 1, the upper end of described backwash pipeline 5 is provided with sand-washing device 6, and the upper port of described backwash pipeline 5 connects with described disengagement chamber 4, described disengagement chamber 4 also connect with outside cesspool, and the sewage after washed-out sand is expelled to outside cesspool.
Being provided with the water overflow chamber 7 of upper end open in described cartridge filter 1, the upper port of described water overflow chamber 7 is lower than the upper surface of described cartridge filter 1, and described water overflow chamber 7 will be arranged outside the water overflowed in described cartridge filter 1 by pipeline.
The bottom of described cartridge filter 1 is provided with the air inlet 10 for passing into compression gas, and described air inlet 10 is positioned at the lower section of described backwash pipeline 5 lower port.
In the present embodiment, the upper end of described water-distributing device 3 is connected to water inlet pipe 8, and described water inlet pipe 8 stretches out described cartridge filter 1 away from one end of described water-distributing device 3 by being arranged on the water inlet of described cartridge filter 1 upper end sidewall and connects with the former sump in outside.Outside former water to be filtered can be passed into described water-distributing device 3 by described water inlet pipe 8, and isolate with the filtrate after described cartridge filter 1 inner filtration, improve the filter efficiency of equipment.
In the present embodiment, described disengagement chamber 4 is also communicated with guide pipe 9, described guide pipe 9 stretches out described cartridge filter 1 away from described disengagement chamber 4 one end by the sewage mouth being arranged on described cartridge filter 1 upper end sidewall and connects with outside cesspool, and the sewage after washed-out sand is expelled to outside cesspool.By described guide pipe 9 can by the sewage after described washed-out sand in described disengagement chamber 4 and between sewage mouth the effect underflow stream of liquid level difference go out, timely effluent sewerage, improve equipment cycle efficieny.
Preferably, the lower end of described cartridge filter 1 is inverted taper, and described backwash pipeline 5 is arranged along the axis direction of described cartridge filter 1, and gap is left at the vertebra shape tip of the lower port of described backwash pipeline 5 and described cartridge filter 1 lower end.Can so that dirty sand after filtering receives the effect of self gravitation and automatically sinks down into the bottom of described cartridge filter 1 by said structure, and make dirty sand send the lower end of described backwash pipeline 5 to enter smoothly by external compression gas, achieve the wash cycles of filter sand, improve the operational efficiency of equipment.
Preferably, the vertebra shape that described air inlet 10 is positioned at described cartridge filter 1 is most advanced and sophisticated, external compression gas passes into the filter sand to described cartridge filter 1 from described air inlet 10, will be located in the dirty sand bottom described cartridge filter 1 to be pressed into from described backwash pipeline 5 lower port, and dirt sand is processed via described sand-washing device 6 from rising to upper port from the bottom to top in described backwash pipeline 7.By passing into external compression gas from described air inlet 10, it is possible to the dirty sand being deposited on bottom described cartridge filter 1 be promoted to described backwash pipeline 5 upper end and process, it is achieved that the wash cycles of filter sand, improve the operational efficiency of equipment.
Preferably, described water-distributing device 3 is sleeved on the outer wall of described backwash pipeline 5 along the axis direction of described cartridge filter 1.So that the former water entered from described water inlet pipe 8 is evenly distributed in described casting bed 2 by described water-distributing device 3, substitute can be entered and improves filter effect by the way.
In the present embodiment, it is additionally provided with in described cartridge filter 1 and holds mud umbrella 11, the described mud umbrella 11 that holds is embedded in described casting bed 2, and described in hold mud umbrella 11 and be sleeved on the outer wall of described backwash pipeline 5, described in hold mud umbrella 11 and be positioned at below described water-distributing device 3 and support described water-distributing device 3.Can be used to support described water-distributing device 3 by the described mud umbrella 11 that holds, and make the filter sand fallen after rise from described sand-washing device 6 be distributed the bottom of described cartridge filter 1 uniformly, it is ensured that the mobility of filter sand in described cartridge filter 1.
In the present embodiment, described water overflow chamber 7 is arranged on inside described cartridge filter 1 upper end, one sidewall of described water overflow chamber 7 overlaps with the sidewall of described cartridge filter 1 setting, and the sidewall that described water overflow chamber 7 overlaps with described cartridge filter 1 is provided with water purification mouth, the former water after filter sand filters is discharged from described water purification mouth by pipeline.So that the former water after filtering overflows automatically in described cartridge filter 1, and can being arranged from described water purification mouth by said structure, simple in construction, in whole cartridge filter 1, the mobility of water and filter sand is better.
Preferably, described backwash pipeline 5 is arranged over cover plate 12, it is prevented that the air pressure in described backwash pipeline 5 crosses the filter sand in backwash pipeline 5 described in senior general and sewage ejection.By being provided above cover plate 12 at described water overflow chamber 7, it is possible to prevent the air pressure in described backwash pipeline 5 from crossing the filter sand in water overflow chamber 7 described in senior general and sewage ejection, it is to avoid filter sand quantity reduces the filter effect that impact is follow-up after equipment runs a period of time.
Outside former water enters described water-distributing device 3 by described water inlet pipe 8, in the described water-distributing device 3 uniform to the described casting bed 2 of former water by entrance, external compression gas passes in described cartridge filter 1 bottom casting bed 2, will be located in the dirty sand bottom described cartridge filter 1 to be pressed into from described backwash pipeline 5 lower port, and dirt sand is processed through described sand-washing device 6 from rising to upper port from the bottom to top in described backwash pipeline 5, the filter sand cleaned falls after rise to described casting bed 2, and in described disengagement chamber 5, sewage is by row outside pipeline.
Present invention also offers a kind of modified form uninterruptedly dynamic drift sand filtration system, including air compressor machine, operated pneumatic valve and described defecator, described air compressor machine passes into compression gas by air-pressure duct bottom described cartridge filter 1, and described operated pneumatic valve is arranged on described air-pressure duct and regulates the air pressure in described backwash pipeline 5.
A kind of modified form of the present invention is dynamic drift sand defecator and system uninterruptedly; while filtering, casting bed is carried out backwash; achieve and former water is carried out continuous filtration treatment, so can be greatly improved filter effect, and overcome the defect of necessary stop cleaning casting bed in prior art.It addition, wash while equipment runs, it is also possible to effectively avoid blocking, the convenient care and maintenance to equipment.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a modified form uninterruptedly dynamic drift sand defecator, it is characterized in that: include cartridge filter (1), it is filled with filter sand in described cartridge filter (1) and forms casting bed (2), being embedded with water-distributing device (3) in described casting bed (2), the upper end of described water-distributing device (3) connects with the former sump in outside；
Described cartridge filter (1) upper center is caved in and is formed disengagement chamber (4), backwash pipeline (5) it is additionally provided with in described cartridge filter (1), the lower end of described backwash pipeline (5) is embedded in described casting bed (2), and it is positioned at described cartridge filter (1) bottom, the upper end of described backwash pipeline (5) is provided with sand-washing device (6), and the upper port of described backwash pipeline (5) connects with described disengagement chamber (4), described disengagement chamber (4) also connects with outside cesspool, and the sewage after washed-out sand is expelled to outside cesspool；
The water overflow chamber (7) of upper end open it is provided with in described cartridge filter (1), the upper port of described water overflow chamber (7) is lower than the upper surface of described cartridge filter (1), and described water overflow chamber (7) will from row the water of spilling in described cartridge filter (1) by pipeline；
The bottom of described cartridge filter (1) is provided with the air inlet (10) for passing into compression gas, and described air inlet (10) is positioned at the lower section of described backwash pipeline (5) lower port.
2. a kind of modified form uninterruptedly dynamic drift sand defecator according to claim 1, it is characterized in that: the upper end of described water-distributing device (3) is connected to water inlet pipe (8), described water inlet pipe (8) stretches out described cartridge filter (1) away from one end of described water-distributing device (3) by being arranged on the water inlet of described cartridge filter (1) upper end sidewall and connects with the former sump in outside.
3. a kind of modified form uninterruptedly dynamic drift sand defecator according to claim 1, it is characterized in that: described disengagement chamber (4) is also communicated with guide pipe (9), described guide pipe (9) stretches out described cartridge filter (1) away from described disengagement chamber (4) one end by the sewage mouth being arranged on described cartridge filter (1) upper end sidewall and connects with outside cesspool, and the sewage after washed-out sand is expelled to outside cesspool.
4. a kind of modified form uninterruptedly dynamic drift sand defecator according to claim 1, it is characterized in that: the lower end of described cartridge filter (1) is inverted taper, described backwash pipeline (5) is arranged along the axis direction of described cartridge filter (1), and gap is left at the vertebra shape tip of the lower port of described backwash pipeline (5) and described cartridge filter (1) lower end.
5. a kind of modified form uninterruptedly dynamic drift sand defecator according to claim 4, it is characterized in that: the vertebra shape that described air inlet (10) is positioned at described cartridge filter (1) lower end is most advanced and sophisticated, external compression gas passes into the filter sand of described cartridge filter (1) bottom from described air inlet (10), will be located in the dirty sand of described cartridge filter (1) bottom to be pressed into from described backwash pipeline (5) lower port, and dirt sand is risen to upper port from the bottom to top via described sand-washing device (6) process in described backwash pipeline (7).
6. a kind of modified form uninterruptedly dynamic drift sand defecator according to claim 4, it is characterised in that: described water-distributing device (3) is sleeved on the outer wall of described backwash pipeline (5) along the axis direction of described cartridge filter (1).
7. a kind of modified form uninterruptedly dynamic drift sand defecator according to claim 6, it is characterized in that: be additionally provided with in described cartridge filter (1) and hold mud umbrella (11), the described mud umbrella (11) that holds is embedded in described casting bed (2), and described in hold mud umbrella (11) and be sleeved on the outer wall of described backwash pipeline (5), described in hold mud umbrella (11) and be positioned at described water-distributing device (3) lower section and support described water-distributing device (3).
8. a kind of modified form uninterruptedly dynamic drift sand defecator according to any one of claim 1 to 7, it is characterized in that: described water overflow chamber (7) is arranged on inside described cartridge filter (1) upper end, one sidewall of described water overflow chamber (7) overlaps with the sidewall of described cartridge filter (1) setting, and the sidewall that described water overflow chamber (7) overlaps with described cartridge filter (1) is provided with water purification mouth, the former water after filter sand filters is discharged from described water purification mouth by pipeline.
9. a kind of modified form uninterruptedly dynamic drift sand defecator according to claim 8, it is characterized in that: described backwash pipeline (5) is arranged over cover plate (12), it is prevented that the air pressure in described backwash pipeline (5) crosses the filter sand in backwash pipeline (5) described in senior general and sewage ejection.
10. a modified form uninterruptedly dynamic drift sand filtration system, it is characterized in that: include the defecator described in air compressor machine, operated pneumatic valve and any one of claim 1 to 9, described air compressor machine passes into compression gas by air-pressure duct from described cartridge filter (1) bottom, and described operated pneumatic valve is arranged on described air-pressure duct and regulates the air pressure in described backwash pipeline (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610257685.7A CN105727605A (en) | 2016-04-22 | 2016-04-22 | Improved intermittent dynamic quicksand filtering device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610257685.7A CN105727605A (en) | 2016-04-22 | 2016-04-22 | Improved intermittent dynamic quicksand filtering device and system |
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| Publication Number | Publication Date |
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| CN105727605A true CN105727605A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610257685.7A Pending CN105727605A (en) | 2016-04-22 | 2016-04-22 | Improved intermittent dynamic quicksand filtering device and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109173363A (en) * | 2018-11-12 | 2019-01-11 | 新乡市绿丰环保工程有限公司 | Continuous activated carbon filter device and its operation method |
| CN112090124A (en) * | 2019-01-25 | 2020-12-18 | 倍杰特集团股份有限公司 | Anti-blocking device of material washer |
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| CN203886255U (en) * | 2014-05-07 | 2014-10-22 | 绿源(北京)环保设备股份有限公司 | Uniform water distribution-type active sand filter with low sand content |
| CN104524829A (en) * | 2015-01-26 | 2015-04-22 | 绿地环保科技股份有限公司 | Active quicksand filter |
| CN205549709U (en) * | 2016-04-22 | 2016-09-07 | 四川悦承环保节能科技有限公司 | Incessant dynamic drift sand filter equipment of improvement type and system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203886255U (en) * | 2014-05-07 | 2014-10-22 | 绿源(北京)环保设备股份有限公司 | Uniform water distribution-type active sand filter with low sand content |
| CN104524829A (en) * | 2015-01-26 | 2015-04-22 | 绿地环保科技股份有限公司 | Active quicksand filter |
| CN205549709U (en) * | 2016-04-22 | 2016-09-07 | 四川悦承环保节能科技有限公司 | Incessant dynamic drift sand filter equipment of improvement type and system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109173363A (en) * | 2018-11-12 | 2019-01-11 | 新乡市绿丰环保工程有限公司 | Continuous activated carbon filter device and its operation method |
| CN112090124A (en) * | 2019-01-25 | 2020-12-18 | 倍杰特集团股份有限公司 | Anti-blocking device of material washer |
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